-33.96% is the change from 963 to 636
Calculation steps:
[( 636 - 963 ) ÷ 963] x 100 = -33.96%
Formula
Percentage change = [(636 - 963) / 963] x 100
Subtract the new number by the original number
636 - 963 = -327
-327 ÷ 963 = -0.3395638629283489
-0.3395638629283489 x 100 = -33.96%